Coastal industrial zones often face the challenge of freshwater resource shortages. Seawater desalination provides an effective solution to the water supply bottleneck faced by industrial enterprises. Large-scale seawater desalination processes primarily adopt reverse osmosis membrane technology to convert high-salinity seawater into pure water that meets industrial requirements.

Flat panel display glass substrates require multiple precision cleaning steps before and after processes such as coating, exposure, and etching. Micro-contamination of the water can directly cause bright or dark point defects. Therefore, the requirements for ultrapure water used in cleaning are even more stringent than those in the typical semiconductor industry.

Because the water quality requirements for electronics and semiconductor manufacturing are extremely stringent, and parameters such as particles, ions, total organic carbon , and dissolved oxygen must all be controlled at extremely low levels, the ultrapure water system must be a multi-stage, precision purification process.

Research institutions and testing centers require large volumes of pure water at various grades. A centralized production and loop distribution approach can improve efficiency and reduce maintenance costs. A centralized laboratory pure water system typically consists of three parts: pretreatment, purification, and the pipe network circulation loop.